Vibrator for massage treatment.



No. 816,365. PATENTEDTMAR. 27, 1906.

W. OLSON.

VIBRATOR FOR MASSAGE TREATMENT. I APPLICATION FILED 00'1.6, 1904.RENEWED JUN; 19, 1905.

WITNESSES.

ATTORNEY LIL UNITED srnrns PATENT VIBRATOR FOR MASSAQE TREATMENT;

Specification of Letters Patent.

Fatented March 2?, 1995.

Application filed October 6,1904. Renewed June 19, 1905. Serial No.268,045.

cation to the part to be treated and mounted on a suitable handle formanipulating it, and means are also provided for connecting the motorwith a source of motive poweras an electric battery, compressed-airreservoir, or the likein a way to permit the instrument to be movedabout for convenience in making the application to dilierent localitiesof the body or the patient. i

In th drawings, Figure 1 is a plan view of my improved vibratorconstructed as anunbalanced electric motor, with a part of the inclosingcase removed and with the battery in side elevation and also a diagramof the wire system. Fig. 2 is a longitudinal section showing theemployment of an unbalanced compressed-air motor for producing thevibrations. f g

" In the electric apparatus, a represents an eleotromagnet, of which I)I) represent the pole-pieces, d an armature, e a commutator,

3 5 f and g'the exterior conducting-wires, h the brushes, t thebattery-cells, j the switchwires, and 7c a switch for cutting in or outone" or more cells of the battery according as moderate or high speed isrequired.

To one side of the armature e an unbalancing -weight Z is radiallyapplied" to impart quick lateral vibrations to the case, whereby apalpitating action may be brought to bear against the parts to betreated when the instrument is pressed sidewise against said parts, and,the said instrunent is preferably provided with a handle m forconvenience in such application, the wires f 9 running through saidhandle. The handle facilitates the vibrations as compared with theaction of the motor proper when grasped in the hand without a handle, aswill be readily understood but the instrument may be so used if desired.

To one side of the motorcase and at right angles to the line of thehandle, or approximately so, a radially-projecting hammerpiece 18applied in the form of a disk n or other shape, as may be preferred asappropriate to the subject under treatment, for impact on the.aforesaidparts. I

To facilitate interchange of hammenpieces of different forms and shapes,the application to the instrument is tobe made in any de siredattachable way as, for instance, by a projecting boss 0 applied to theside of the case and having 'a tapered socket that is radial to thearmature with a correspondinglytapered stud p of the hammer-piecefitting the socket with a slight friction for temporarily retaining it.

In Fi 2 I re resent. a modification in which a ucketewli eel g issubstituted for the motor-armature, said ,wheel having practi-- callythe same radially-placed unbalancingweight Z with inlet-passage r andexhaustpassages through the" handle for operating the said wheel bycompressedair or other va or or fluid to be supplied from any suitab e'source through a flexible pipe or otherv connection.

it Will be seen that lightand handy, as well as very eiiicrent vibratinginstruments of this character, may be supplied very cheaply. It

will also be seen that with the motor pivoted in opposite sides of thecase with the hammer-piece rigidly attached to the case in the plane oirotation and the handle attached to the case approximately at rightangles to the hammer-piece, a simpler and less expensive and a moreconvenient machine for manipulatin is provided,

. l c not herein limit myself to the particular form or shape of thehandle or hammer pieces or to the precise relation of the hammer-piecein use to the handle or to the prime mover or to'passing themeans forsupplying power through the handle, as these may be varied withoutdeparting from the spirit of my invention. v i

I claim as my invention l. A vibrator for massage treatment, comprisinga handle and case connected together and a hammer-piece fixed to thecase exteriorly thereof, a' prime mover Within said case and a rotaryunbalanced mernberactuated thereby m the plane of the hammerpiece toreffecting the vibration.

2. An unbalanced rotary motor, an inclosing case having the motorpivoted in oppositeqsides respectively, a hammer-piece attached tothe'inclosing case, a handle, at:

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tached to the case approximately at right angles to the hammer-piece andmeans for supplying power to the motor.

3. A vibrator for massage treatment con- 5 sisting of a rotaryunbalanced electromagnetic armature, fixed pole-pieces, an inclos ingcase for said armature and pole-pieces having said armature pivoted inopposite sides respectively, a hammerpiece fixedly 16 attached to theexterior of the case, ahandle attached to the case ap roximate'ly atright angles to the axial line 0 the motor and hammer-piece, andcircuit-Wires to the motor-terminals.

4:. An unbalanced'rotary motor, an inclosing case having the motorpivoted in opposite sides respectively, a hammer-piece attached to theinclosing case in the plane of rotation of the motor, a handle attachedto 20 the case approximately at right angles to the Witnessesi hammeriece and means for su plying power to t e motor through the hand e.

5. A vibrator for massage treatment, con sisting of a rotary unbalancedelectromagnetic armature, fixed pole-pieces, an inclosingcase for saidarmature and pole-pieces having said armature pivoted in opposite sidesrespectively, a hammer-piece fixedly attached to the exterior of thecase in the plane ofthe rotation of the armature, a handle attached tothe case approximately at right angles to the axial line of the motorand hammer-piece, and circuit-Wire's arranged lengthwise through thehandle.

Signed at New York tember, 1904.

W ILLlAM OLSON.

A. PITHAYER,

O. 'SEDGWIOK.

this 25th day of Sep- 3

